Why is it showing '&email' in my database instead of the actual email address?

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PHP

MySQL

database

Hi all

Could anyone please help me.

I am building a PHP website and created my database on phpMyAdmin. I created a database called maxipakdb and withing that a table called maxipak table.

When I type in data, for example, my email on the webpage I am creating, it displays on phpMyAdmin, but instead of showing the actual email I typed in, on my database, it shows as &email. Can anyone tell me why?

Please see my code below. Everything is working 100% until I want to see what emails have subscribed on my database.

<?php
    /* Database config */
$db_host        = 'localhost';
$db_user        = 'root';
$db_pass        = '';
$db_database    = 'maxipakdb'; 
/* End config */

$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_database);

/* check connection */
if (mysqli_connect_errno()) {printf("Connect failed: %s\n", mysqli_connect_error());}

$email = $_POST['email'];

// Perform queries 

mysqli_query($mysqli, "INSERT INTO maxipaktable (id,email) VALUES (NULL,'&email')");


header('Location: success.php');

echo $email;
?>

What I have tried:

I haven't tried much really because I am stuck. I have tried to google possible solutions but I am not to sure how to word it for google. I am still new to programming.